Have done as you suggested using settings in RAW of 49 each for colour and luminance. Then in regular edit +12 for lightness. This last one is a balancing act because if I go higher then the blotches stand out in a different way. Yours looks like you have put the slider well over to the right. How much did you use please ? The background is no problem at all and will put my mind to it later, can overcome (if necessary) at that point.

Many thanks for your input, very helpful. Still deciding at what point I say enough is enough (a while yet as am pretty stubborn).

The other thing that strikes me is that the image would probably make a vg B & W.

- With the Color Picker selected a light portion of the child's forehead.

- Added a Solid Color adjustment layer filled with this color and set the layer's Blend Mode to Color. This eliminated the yellow but also changed the entire picture.

- Filled the adjustment layer mask with black to restore the original.

- Set the Foreground/Background colors to their default white/black values.

- With the Brush tool painted over the yellow portions with white to reveal the new skin tone, taking care to avoid lips, eyes, hair, etc. If you make a mistake, paint with black to restore the original. Tip: type "X" to toggle between black & white.

- If the skin looks too dark or light, you can double-click the adjustment layer to select a new color. If too dark you can also try lowering the layer's Opacity.

- To elimimate the yellow hair I added a Hue/Saturation adjustment layer, selected Yellow from the pull-down list, and lowered the Saturation.

- Made a Levels adjustment to the original layer to lighten the whole thing.